Integrated Metabolome and Transcriptome Analysis Uncovers the Role of Anthocyanin Metabolism in Michelia maudiae

Figure 3

Metabolomic and transcript profiling in the phenylpropanoid and flavonoid biosynthetic pathways in “white flower” and “rubellis flower.” Grids with a color-scale from yellow to black represent FPKM values 1-10, 10-20, 20-40, 40-80, 80-160, 160-320, 320-640, 640-1,280, 1,280-2,560, and over 2,560, respectively. The numbers in square brackets after the grid represent log₂-fold values of unigenes WE/RE and WL/RL, respectively. Compared with WL, in RL upregulated metabolites were in red boxes and downregulated metabolites were in blue boxes. PAL: phenylalanine ammonia-lyase; C4H: cinnamic acid 4-hydroxylase; 4CL: 4-coumarate-CoA ligase; CHS: chalcone synthase; CHI: chalcone isomerase; F3H: flavanone 3-hydroxylase; F3H: flavanone 3-hydroxylase; F35H: flavanone 35-hydroxylase; DFR: dihydroflavonol 4-reductase; ANS: anthocyanidin synthesis; UFGT: UDP-glucose flavonoid 3-O-glucosyltransferase; FLS: flavonol synthase; ANR: anthocyanidin reductase.